package com.FileIo;


import java.io.*;

class Blip1 implements Externalizable{
    public Blip1() {
    }

    @Override
    public void writeExternal(ObjectOutput out) throws IOException {
        System.out.println("Blip1 Constructor");
    }

    @Override
    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        System.out.println("Blip1.readExternal");
    }
}
class Blip2 implements Externalizable{
    public Blip2() {
        System.out.println("Blip2 Constructor");
    }

    @Override
    public void writeExternal(ObjectOutput out) throws IOException {
        System.out.println("Blip2.writeExternal");
    }

    @Override
    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        System.out.println("Blip2.readExternal");
    }
}
/**
 * @author 13699
 */
public class Blips {
    public static void main(String[] args)
            throws IOException,ClassNotFoundException{
        System.out.println("Constructing objects:");
        Blip1 b1=new Blip1();
        Blip2 b2=new Blip2();
        ObjectOutputStream o=new ObjectOutputStream(
                new FileOutputStream("Blips.out"));
        System.out.println("Saving objects:");
        o.writeObject(b1);
        o.writeObject(b2);
        o.close();
        ObjectInputStream in=new ObjectInputStream(
                new FileInputStream("Blips.out"));
        System.out.println("Recovering b1:");
        b1= (Blip1) in.readObject();

    }
}
